please help me with maths !!!

A fish was at the river-bed at a certain time. After 5 minutes, the water level of the river rose
up 2.4 cm and the water level of the river rose up again 3½cm after 4 minutes. The moment, the fish was at 14.6 cm from the river-bed and 162 cm below water level of the river.

Calculate the original height, in cm, of the water level of the river.​

Answers

Answer 1

Answer:

170.7 cm

Step-by-step explanation:

Let the original water level is x.

Use below equation to find its value:

x + 2.4 + 3 1/2 = 162 + 14.6x + 2.4 + 3.5 = 176.6x + 5.9 = 176.6x = 176.6 - 5.9x = 170.7 cm

Related Questions

Please help! What's the difference between the two expressions? (3/7x+9)-(2/7x-3)

Answers

i believe the answer is: 12 + x/7

A jar contains 4 blue marbles, 6 green marbles, and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is green? (In Percent)

Answers

Answer: 1/3 or 33%

Step-by-step explanation:

There are 20 total marbles, 6 are green. 20 divided by 6 is 3.333e3

Identify the a, b, and c of the following quadratic: −3x2+2x−15

Answers

Answer:

a = -3

b = 2

c = -15

Step-by-step explanation:

One of the legs of a right triangle measures 9 cm and the other leg measures 13 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
CAN I GET HELP PLEASE

Answers

Answer:

15.81

Step-by-step explanation:

plss help mee

Ethan drew the diagram below with the points labeled as shown.


Which point shows where the perpendicular lines meet?

A. Point W
B. Point X
C. Point Y
D. Point Z​

Answers

Answer:

B. Point X

Step-by-step explanation:

Perpendicular Lines meet at a 90° angle.

Explain how to solve this.

Answers

Answer:

c=74

Step-by-step explanation:

48+58=106

180-106=74

Answer:

D is 122         A is 58          B is 48       C is 74

Step-by-step explanation:

PLEASE HELP ME

GIVING BRAINLIEST

Answers

Answer:24

Step-by-step explanation:

What is her average rate of change, in miles per hour, during the interval of 0.75 to 1.00

Answers

Answer:

2

Step-by-step explanation:

im need more help besties

I’m so d*mb lol

anyways giving brainliest

:)

Answers

Well , i took a while to understand the question , lol . I guess the answer is. 7 students

Answer: 1

Step-by-step explanation: i might be wrong most likely i am because im dmb to

10) An employee at a magazine company calls existing customers to renew
their subscriptions. For existing customers, employees earn 3 points for
renewing a subscription and earn-2 points for not renewing a subscription
After an hour, an employee renews 4 existing subscriptions and does not
renew 7 existing subscriptions. Which of the following is the expression
that represents this situation? *
O A 4(3) +-7(2)
O B 4(-2) + 7(3)
O C4(3) + 7(-2)
O D3(4) + 2(-7)

Answers

Answer:

C

Step-by-step explanation:

since the employee earns 3 points for every renewal and he renews 4 you must multiply those together. then you need to add the loss of points (-2) times the number of nonrenewal customers (7).

A circle of centre M has a radius of 11CM . if CA=16.3cm ,what is AB ? give your answer to the nearest tenth!​

Answers

Answer:

16.4

Step-by-step explanation:

If it is asking for the tenth it will be the 1st one after the point and you round it to the next one.

10th grade level LT1

Answers

Answer:

? = 3.

Hope this will help you.

(6^-8)^-3, 81^7 • 3^-3/9^7, 8^-5/8^7, 9^-4• 9^6. Use the Law of exponents to simplify. Do not use negative exponents in your answer.

Answers

Okay so you first multiply them and find out what is the multiples and can you post a picture instead

pls people my brother needs this ik its not for me but still pls.

Answers

Answer:

hey becca did u get yur account thing fixed, ily

Step-by-step explanation:

What is 75,06975,069 divide by 4545

Answers

Answer:

1651699.685

Step-by-step explanation:

calculator

Help me pls TwT, I’m terrible at math

Answers

Answer:

The answer is 49

Step-by-step explanation:

Rate of change=  (f(b)-f(a))/(b-a)

a = 3 and b = 5

Rate of change = (125-27)/(5-3)

= 49

A square photo has a side length of 0.17 foot. The photo is enlarged by doubling the dimensions. Then it is enlarged again by tripling the new dimensions.

Answers

Calculate the side length of the enlarged picture

Answer:

Hence, final picture will have a side length of 1.02 foot

Step-by-step explanation:

Side length of square photo, s = 0.17

Original dimension = (0.17 by 0.17)

Enlarged photo = double the original dimension:

2 * (0.17 * 0.17)

(0.34 * 0.34)

Second enlargement = Tripling the new dimension:

3 * (0.34 * 0.34)

(1.02 * 1.02)

Hence, final enlarged dimension = (1.02 * 1.02)

Hence, final picture will have a side length of 1.02 foot

Help please! No links!

For the following box plot, determine whether the given numbers would be considered outliers.
(Use the "IQR X 1.5" method.)

A. A height of 61 in.

B. A height of 69 in.

C. A height of 74 in.

D. None of these would be considered outliers.​

Answers

Answer:

D option is your answer bro

Jay went on a diet and lost 5 pounds each month. Find Jay's net weight change in 6 months.

Answers

Answer:

a 30 pound weight change in 1 month

Step-by-step explanation:

5 pounds

--------------- times 6 months  results in a 30 pound weight change in 1 month

 1 month

PLEASEEE HELP I WILL GIVE U BRAIN THING IF ITS CORRECT

Answers

Cant see photo sorry!!

please answer quickly. thanks in advance.

Answers

Answer:

KM=60°

Step-by-step explanation:

The average of arc LN and arc KM is equal to 110.

[tex]\frac{160+KM}{2} =110[/tex]

160+KM=220

KM=60

What is the coefficient of the term of degree 1 in the polynomial?


2x^8 - 5x^2 + 3x+ 4

Answers

Answer:

3

Step-by-step explanation:

The term with a degree of 1 is 3x. The coefficient of that term is 3.

Find the volume of the rectangular prism that has a width of 3 cm, a length of 8cm, and a hight of 7cm

Answers

Answer:

V = 168 cm^3

Step-by-step explanation:

L length - 8cm

W width - 3 cm

H height - 7 cm    

V = w h l   (Right rectangular prism)

Tam thinking of two numbers. The first number is 1 more
than twice the second number.
The sum of the two numbers is 25.
What are my two numbers?

Answers

Answer:

First number is x

Second number is y

Step-by-step explanation:

x = 2y + 1

x + y = 25

(2y + 1) + y = 25

3y = 24

y=24/3

y = 8

x = 2(8) + 1

x = 16+1

x=17

Hope this helps!!

Find the missing angle measure. Type only the number. I need this urgently! Please! Thank you :)

Answers

Answer:

x=67°

Step-by-step explanation:

x and 113° make a straight angle or straight line, which is 180°, so

x+113°=180°

x=180°-113°=67°

The Answer Is M{x°}=67

have an amazing day <3

Please help me with this question it contains angles and measurements

Answers

Answer:

m∠ONP = 43*

m∠LNO = 137*

m∠MNP = 137*

Step-by-step explanation:

Each line segment is a straight line meaning they are each worth 180°, so if you take 43° from 180° you're eft with 137° which is what ∠LNO and ∠MNP are equal to. ∠ONP is 43° since it is a vertical angle to ∠MNL which is also 43°.

See photo hope it helps

Annie earns $15 per hour babysitting. How many hours will it take her to earn $60?

Answers

Answer:

4 hours

Step-by-step explanation:

15 x 4 = 60

$60

Answer:

4 hours.

Step-by-step explanation:

We are looking for the amount of money Annie will need to earn 60.

Let the equation be 15+x=60.

The equation could be represented as 15+x=60, or 60-15=x.

The easier solution would be to subtract.

When we subtract 60-15 we get 45, therefore the value of x is 45 making the statements true.

15+45=60 and 60-15=45 as well.

We know she earns 15 an hour, so we have to see how many 15 we can add up to get to 60.

15+15+15+15=60, therefore she will need to work 4 hours.

Alyssa attends football games at her school. At each football game, she buys a bottle of water for $0.75 and a candy bar for $0.90. Select all expressions that represent the amount of money, in dollars, Alyssa spends after attending 6 football games. Group of answer choices 6 + 0.75 + 0.90 6(0.75)(0.90) 6(0.75) + 6(0.90) (6 + 0.75)(6 + 0.90) 6(0.75 + 0.90)

Answers

Answer:

6(0.75)+6(0.90)

Step-by-step explanation:

can i get brainleist pls!? hope this helps :)

Which expression is a factor of 9,2- 4r + 1? F3r-1 Gr-1 H 9r - 1 I J There are no real factors.​

Answers

Answer:

use photomath bestie

Stella said, "The opposite of 4 is -4. The opposite of 1 is - .
I think the opposite of a number is always negative."
Stella's claim is NOT true. Give an example of a number whose
opposite is NOT a negative number.

Answers

Answer:

Step-by-step explanation:

the number 0 doesn't have an "opposite"

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